5 CLASSIC FUNCTIONS: These include Trendelenburg and reverse Trendelenburg movement in addition to the standard elevation of the head, knees, and feet. The bed can also be lowered from 19 inches or elevated to 32 inches in height. With these functions, the patient can be positioned in Trendelenburg, Fowler’s, semi-Fowler’s, high-Fowler’s, and standard chair positions. There are angle degree displays for the head elevation and Trendelenburg movements for precise positioning of the patient.